Car-roof.



No. 871,179. PATENTED NOV. 19, 1907.,-

S. OTIS.

GAB. ROOF.

APPLIOATION FILED 11u14. 190e.

Y pur in. of the roof'.

` joint between corners of the rof plates, as

j ofthe bolt; Fig.- 4 illustrates a modified con- This cap UNITED STATES PATENT OEEIOE. i'

SPENCER o'TIs, or CHICAGO, ILLINOIS', AssICNoE 'To EUTCIIINs Cita EOOFING COMPANY,

or DETROIT, MICHIGAN. A QORPOEATION OEMIOHIGAN.

To all whom it may concern:

Be i-t known that I, SPENCER O'rIs, a citi-. zen of the United States of America, resid# ing at Chicago, in the county-of Cook and State of Illinois, have invented certain new and `useful Improvements in Car-Roofs, .of which the following is a specification, reference being had therein to the accompanying drawings.

The invention relates more particularly to the means employed for securing therunnin board supporting saddles to the ridge The invention consists in th'e peculiar construction of the securing bolts, and further in the peculiar construction of the cap in the hereinafter set forth.

In the drawings, Figure 1 is -a cross section through the ridge of a car roof, and Fig. 2 is a perspective view of the cap. Fig. 3 is a view similar to F ig.l l, with a section in a diiIerent' 'plane and illustrates a modified construction struction of the bolt; and Fig. 5 illustrates pn larger scale the modification as shown in 1ig. 3. y

A are roof boards, B the ridge purlin, C tlie metal roof plates, D the saddles, and E the running board of a car roof of known construction. The saddles D, which su port the running boards, are secured to t e purlin B by bolts G, extending through the same, and these saddles are preferably arl ranged to cover the flange joints a between ad'acent roof ,sheets C. j.

t is customary to protect the joint be tween adjacent roof sheets at the ridge by a cap, which is usually formed of cast metal. In the present construction, this cast metal cap is replaced by a sheet metal stamping, whichy chea ens the oost of the construction. as shown in Fig. 2, is fashioned to form cross channels a and '6, which embrace the flanges of the adjacent roof sheets, both at the ridge and at the side. The cap is further centrally apertured at c, and 1s struck u to form an upwardly projecting annular ange d surrounding the said aperture, and adapted to be sleeved upon bolt G.

To prevent possible'leakage between the bolt and the cap H; theformer is provided with a ylarerally projecting annular flange e,

Appiaaaon fueanay'ir, 190s. sain N01 316.844.

preferably|` turned downward to form`a re- Leteersipatent. 2ratented1vov. y19,1907'.

cess f on its upper side', with which the flange dof the cap is engaged The saddle D is out -away on its under side to receive this flange 'e, and the threaded upper end of the bolt G has a nut I in engagement therewith, by which the saddlel may be clam ed against' the flange e. vThe lower end of tli tight joint is formed between the bolt G andthe cap H, while said cap protects the j oints' between the roof lates. l III place of ma g the flange e integral e bolt G is also threaded, and provided "with nuts J for with the bolt, it may be madej of a-separate f piece e" secured to the bolt by clamping nuts h and t', as illustrated in Fig. 4, or, as illustrated in Fig. 5, the bolt may be formed in two sections Ijl and H2, one having the flange e2 integral therewith and the other threaded to engage a threaded socket y' in the flange section.

Vl hat I claim as my invention is:

1. In a car roof, the combination with the roof boards and the ridge purlin, of the roof sheets having flanged engagement with each other, a running board supportin@r saddle, a bolt passing through said saddle, roof boards, sheets and ridge purlin, and rigidly clamping .the same to ether, a metallic cap.

having Cross charme s for engaging the flangeld joints of the sheets and apertured for the passage of said bolt,-a'nd a flan. e adjustable in reation tolone end of said covering the joint with said cap.

2. In. a ear roof, the combinationwith roof sheets havin y a flangeden'gagement with .each other, roofbards, a. ridge purlin, and

the running lboard supporting saddle, of a bolt comprlsing detachable sections passin through said sheets, boards, saddle -an lpurlin, and ri idlyr clamping the same togetherryzarnqetaIlic cap having cross channels for embracing thel flanges of the sheets, said cap being centrally apertured for the passageof said bolt, an apertured annularilange on said Cap, and a down-turned annular fange bolt for Ico on one section of said'bolt embracing saidl` cap flange, for the purpose described.

3. In a car roof, the combination with .the roof boards, roof sheets, rid e purlin', and running board supporting sadle, of a me` talli'o cap ooverin interseojqing joints in the sheets; cap, and saddle are rigidly clamped sheets, and a bo1 tl ormed in two sections,v one to ejher. 10 ofsaid sections passing through said purlin, h testimony whereof I affix my signature roof boards7 sheets, 'and agp, and the other in presence of two witnesses.

section having' a dowTturned screw thread- .i SPENCER OTIS. ed 'cap engagingthe end of said'rst sect0f1, Wtnessesz.

said second lv's'eotion passing through the 'W. L. DE REMER; saddle, Wherby sgd-purlin, roof boards, G. GQ JOHNSON. 

